Ptolemy (Noun)
Meaning 1
Alexandrian astronomer (of the 2nd century) who proposed a geocentric system of astronomy that was undisputed until the late Renaissance.
Classification
Nouns denoting people.
Examples
- Ptolemy's geocentric model of the universe was widely accepted for over a thousand years until it was challenged by Copernicus.
- The works of Ptolemy had a profound impact on the development of astronomy during the Middle Ages.
- Ptolemy's most famous work, the Almagest, is a comprehensive treatise on astronomy that includes his geocentric model of the universe.
- The Ptolemaic system, proposed by Ptolemy, placed Earth at the center of the universe with the Sun, Moon, and planets revolving around it.
- Ptolemy's observations of the night sky and his subsequent writings on astronomy laid the foundation for later astronomers to build upon.
Synonyms
Related Words
Meaning 2
An ancient dynasty of Macedonian kings who ruled Egypt from 323 BC to 30 BC; founded by Ptolemy I and ended with Cleopatra.
Classification
Nouns denoting groupings of people or objects.